广州化学2012，Vol.37Issue(4)：49-55,7.
钛白粉载体对选择性催化还原脱硝催化剂性能的影响
Effect of Titanium Dioxide Support on the Properties for Selective Catalytic Reduction De-NOx Catalyst
摘要
Abstract
Titanium dioxide (TiO2) is the support of selective catalytic reduction (SCR) De-NOx catalyst based on vanadium as active component. The crystal form, surface area, particle size, pore structure of TiO2 and the content of SO42- and P205 in TiO2 influence the performance of SCR De-NOx catalyst directly. Compared with titanium dioxide(TiO2)-rutile, titanium dioxide(TiO2) -anatase is the appropriate support due to its high specific surface area and resistance to sulfide. In general, higher surface area of TiO2 is beneficial to prepare catalyst. However, the surface area of catalyst is also related to the particle size of TiO2. Although high surface area of nanorneter TiO2 is used as support, the surface area of catalyst is still small because of sintering and the tormation of vanadium carbide. SCR De-NOx catalyst based on porous TiO2 is more effective owing to the good dispersion of vanadium oxide on TiO2. Small amount of SO42 and P205 introduced in TiO2 during the preparation of TiO2 can improve the De-NOx properties of catalyst.关键词
钛白粉/选择性催化还原（SCR）催化剂Key words
titanium dioxide/selective catalytic reduction (SCR) catalyst分类
化学化工引用本文复制引用
辜敏,杨佳,杜云贵..钛白粉载体对选择性催化还原脱硝催化剂性能的影响[J].广州化学,2012,37(4):49-55,7.基金项目
国家高技术研究发展计划（863计划）资助项日（2010AA065001）. （）
